Given, edge of a cube is 5 unit.
∴ Co-ordinates of O = (0, 0, 0)
∴ Co-ordinates of A = (5, 0, 0)
∴ Co-ordinates of G = (0, 5, 0)
∴ Co-ordinates of D = (0, 0, 5)
∴ Co-ordinates of B = (5, 5, 0)
∴ Co-ordinates of F = (5, 5, 5)
∴ Co-ordinates of E = (5, 0, 5)
∴ Co-ordinates of C = (0, 5, 5)